Wrench.



A. B.v GARLL.

WRENCH.

APPLICATION FILED JULY 16,1912.

, 1,060,891. Patented May s, 1913.

" VII/l j I fly il 15 l WxTNEssEs i 4),j'lfllNVENTOR w ma ' ATTORNEY'UNITEDSTATES PATENT OFFICE.

ADDISON n. CARLI., on BooT'HwYN, rnNNsYLvANIA.

WRENCH.

This fnventionv` has reference .to improvements in wrenches, andrelates. more par-V ticularly to the type of wrench wherein the movable)aw has its shank extending through the body'of'the wrench at substaw'tially right angles to the ixed'jaw, which latter projects'in generallytheudirection of the length of the handle. I

strong and free age as occurs 1n made.

shall be compac-ndlight and 'ike wrenches as heretofore In accordancewith the present invention" i the handle and fixed jaw are closelyginyline one with the other, although the working face of the fixed .jaw isarranged at an acute. e

angle to the central-'longitudinalline othe` and between, the xed jawlandhandle, handle the body of the wrench islaterallyexpanded'andprovided with a passage at right angles to that act-ive faceof the fixed jaw employed for turning nuts or thelike. The side walls ofthis passage are made of a total thickness equal to that of the jaw orhandle, so that there is no diminution of strength in this part of. thewrench, despite the presence of the passage therethrough, and thispassage is so shaped as to guide the shank of a movable jaw without thenecessity of any guiding tongues or grooves,

40 while traversing -the body of the wrench in a manner to intersect therear edge of th'e passage is another passage for the reception of thefeed screw. The body of the wrench is expanded in the direction'ot thelength of the passage, so that while the front wall of the passage, thatis, the one next to the fixed jaw, is of a length about that of thecorrespondingi,r end of the fixed jan, the rear wall ot'the passage islaterally elongated in both directions, so as to form an extendedsupport for the corresponding edge of the movable aw shank, the movablejaw and its shank being of approximately the same thickness throughout,which thickjA ness is the same as that of the fixed jaw...

The invention also comprises in conjuncv Specincaton of Letters Patent.

It is the object of v the present' invention' to provide a wrench ofthis character whlch-4 et markedly.

om danger o such break-7 of the invention. A

.face 6 4if both thickness a Patented May 6, 1913.

application mea my 1e, i912. serial No. 709,767.

tion with the structure herein described an adjustable handle, soarranged that the -angle of the handlewith respect to the jaws may bechanged at will throughout av considerable range.

' The invention will be best understood from-a consideration of thefollowing,- detaileddescripticn, taken in connection with theaccompanying drawings forming apart 55 of this specication, with theJfurther under'standing that while the drawings show1 practical formsofthe invention, it is susceptible of other practical embodiments',wherefore the invention isnot lconfined-to any strict conformity withthev showing of the drawings, but maybe changedand modi fied within suchlimits as do not mark any materialldeparture `from the salient jteaturesl '15 In 'the accompanying drawingsjyfg-Figure \1 is a side elevation ofa` wrench chiistructed f in Aaccordance with the present invention.

Fig. 2is a bottom plan view thereof. Fig.

3' is a side elevation of a wrench wherein the a0 handle portion isadjustable with relation to theremaining portion of the wrench. Fig.'

4 is a section on the line 4 4 of Fig. 3.

Referring to the drawings, and more especially to the form shown inFigs. .l and 2, the wrench is provided with ahandle 1 of appropriateshape, a body portion 2, and

a fixed jaw 3, all constructed as one casting or forging. The handle andjaw 3 may be of substantially the same thickness, while the body portion2 is expanded in -the direction of the width ot the handle, and thentapers as indicated at et, 5, toward the jaw 3,

the taper 4 meeting one iace (3 of the jaw 3 at an angle thereto, andthe taper 5 merging 95 into -a face 7 of the jaw in substantialalinevment therewith, the face 7 being usually serrated, as

is customary` in alligator wrenches, and

this face .7 would meet the faces were continued beyond 10o the outerend of the jaw 3.

'lraversing the body 2 of the wrench between the tapered pdrtions 4, 5is a passageA 8v at substantially right angles to the face 6 of the jaw3, and of a width equal to the 10a distancejnetween the ljaw 3 and thesepa-- rated ends-.of the tapered portions et and'5. This passage .isfianked by walls 9, each of a bont halt the thickness of the jaw 3 orbody portionl, which jaw andbody A11o portion are of approximately the'same thickness except that the interior portion of the handle 1 isthinned to a web 10, such construction contributing to the lightness ,of

the wrench without. undue sacrifice 'of' strength. 'lhe passage Shas itsends rounded.and receivs the Y,shank11 of a movable jaw 12` the shankand jaw being of substantially the saine thickness' throughougsuch,A

thickness being that ofthe jaw 3, and the jar.' 12 is formed with aplane face 13 ex.

tending at right angles -to thefshank matching the face 6 of the jaw 3.,

That 'portion of the head2 between the and j walls l and the handle 1 isof a thickness correspondingl to the thickness of the edges of thehandle 1 and jaw 3, and is traversed by a passage 1li, the forward ledgeof which intersects the rear edge of the passages, and this passage 14is substantially opposite the wider end of the jaw 3 where it joins thewalls 9. Lodged within the passage 14 is a feed screw 15 mounted on apin 16 as is customary in jaws of this character, While the'corresponding edge ofthe shank11 is formed -with'teeth 17 with -Whichthe -feed screw 15" engages, the construction of feed'screw an'd teeth.or rack being the'same asis customary in wrenches o'fthis character.

' of the wrench which heretofore 'in wrenches. Y of this character havebeen-easily broken.- 40

It is vto be observedthat the 'doubly' ex-` tended rear wall of thepassage 8 gives an elongated bearing for the shank'of the movable jaw,thus greatly strengthening the wrench, while the lateralelxpansi'on ofthe body of the wrench where traversed by the passage 8 andv thethickening of the Walls 9 until the combined thickness of these wallsvis equal to the thiclgiess of the rest of the Wrench, greatlystrengthens those portions At the same time the- Wrench is of the thinor dat type, making it possible to manipulate Ynuts or other articleswhere a thicker Wrench would not work. 'The jaw 12 is reversible', sothat its Working face 13 may be brought l-opposite the toothedxface 7 ofthe j a-W '.3, thus converting the Wrench from an ordinary -smooth jawnut Wrench intoan alligator wrench. The feed screw or nut 15 is locatedso as to engage theteeth 17 ofthe movable jaw substantially intermediateof a rearward j projection of the'base of 'the fixed jaw pershapedportion is provided with gear teeth 1f), while t-h'e opposite walls ofthe'arcshaped portiohare each formed with a cur-ved groove 5' 2 0.- 'Y Ahandle 1" is provided, which in gen- ,.eral construction is the, saineas the handle l ofthefstructureshown in Fig. 1', except that at.: oneend Athis handle-,is thickened and' tli'eotlier, so as to straddle the-arc-shaped portion 18 where provided with thefte'eth 19, and't'o'enterthe grooves 20. This expanded portion of the handle 1 carries a feedscrew 22 heldinplace by'a .pivot pin 23 and engaging the' teeth 19, sothat by manipulation of thefeed screw 22 the jaw carryinghead of 'formedwith tongues'21 directed one toward `the wrench may beladjusted aboutthe .center-5 ofgeneration ofthe arc-shaped ortion 18, while the jaw.I12 maybe adjuste as inthe form shownin Fig. 1 without reference totheangle of the'handle' to the head. The 4rela'tio'n of the jaws 2 and12 one to 'the other and, to the main port-ion ofthe-head of the Wrenchin the form shown in Fig. 3 is sub- -I stantially that ofthe form 'shownin Fig.A 1,k

so that specific description of this part of the wrench is unnecessary,the same reference numerals being applied'tothe parts of thel wrench:shown 1n F1g.3 which are counterpartsof the' structures shown in Fig. 1.@What is claimed is wrench terminating 'at one-'end in` a fixed`-j'aw-extendin in the same 'general direction as the hand e of thewrench and prof vided vWitha movable jaw having a shank in 'laterallytraversing relation to the wrench 'and tothe fixed jaw, the fixed jawhaving 'oppositely disposed active edges 'and the I movable jaw :beinginsertible into and removable-transversely of the-wrench from 'eitherside to bring the movable jaw into operative relation to either activeedge of the xed jaw, at will, the movable jaw hav- .ing 'alaterallyextending bearing for its rear edge in the body of the wrench and saidrear edge being toothed, and a nut mounted in engagement with the `teethof the movable jaw substantially intermediate ofthe rearward projectionof the base of the fixed jaw faces perpendicularto said base, the fixedjaw having one active edge perpendicular to the transversely elongatedbearing and ap'- -proximately intermediate thereof, and the other activeedge inclined toward the corresponding .end of the laterally elongatedAbearing. Y

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature in the presence of two witnesses..

A. B. CARLL. Witnesses: i

JOHN B. Hour, 4 ORvrL W. SMITH.

